Hi I'm a 20 year old woman with no social life and friends am I destined to be lonely forever?

It depends on how much you value yourself. We allow others to mistreat us sometimes. You are a wonderful person and you deserve to be loved for who you are. When it comes to social life, we all have to work on ourselves to improve in this area. It's not too late for you to develop yourself socially and surround yourself with good people. There are many self-help books out there and classes you can attend. May you will find the love of your life that you deserve.